asyncrat | 69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7

General

Target
69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
Size 45KB
Sample260601-yd2qpses4x
SHA256 69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7
MD5 05dcc1aeffc79ab6e5155e51f1cfda18
SHA1 d5bca5840114f4a14c1f3861db9d836006b2e578
SHA512 c4ed933f19bf353d6697441408c37b387a337c962e04e6d5467359e43e7fe7f9d65e45f991bcc00cf74ea78f0234251ef9cfe38ddf2272d1e42df7609f29a2de
SSDEEP 768:Yub+dT5UohzWUf8dBmo2qVyqJaxjwHuPIPzjbYg/3iLBXh6In4dknilDBDZrx:Yub+dT5Pk2H3+3P3bP/SL6I4WnCdrx
TLSH
T128232B003BE9812BF2BE5F749DF26105467AF1676603D64E2CC451DB5623FC68A026FD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

buomdep.lol:443
buomdep.lol:80
buomdep.lol:7797
buomdep.lol:8707
buomdep.lol:6620
www.buomdep.lol:443
www.buomdep.lol:80
www.buomdep.lol:7797
www.buomdep.lol:8707
www.buomdep.lol:6620
codered.buomdep.lol:443
codered.buomdep.lol:80
codered.buomdep.lol:7797
codered.buomdep.lol:8707
codered.buomdep.lol:6620
dridex.buomdep.lol:443
dridex.buomdep.lol:80
dridex.buomdep.lol:7797
dridex.buomdep.lol:8707
dridex.buomdep.lol:6620
conti.buomdep.lol:443
conti.buomdep.lol:80
conti.buomdep.lol:7797
conti.buomdep.lol:8707
conti.buomdep.lol:6620

Mutex

Uld1i12408wd

Attributes

delay
0
install
true
install_file
54lq2q8i.exe
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000500000002a768-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3988	54lq2q8i.exe
1832	54lq2q8i.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	54lq2q8i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	54lq2q8i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3304	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4892	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
Token: SeDebugPrivilege	3988	54lq2q8i.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 3268	412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe	81
PID 412 wrote to memory of 5836	412	69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe	82
PID 3268 wrote to memory of 4892	3268	cmd.exe	85
PID 5836 wrote to memory of 3304	5836	cmd.exe	86
PID 5836 wrote to memory of 1832	5836	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe
"C:\Users\Admin\AppData\Local\Temp\69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "54lq2q8i" /tr '"C:\Users\Admin\AppData\Roaming\54lq2q8i.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3268
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "54lq2q8i" /tr '"C:\Users\Admin\AppData\Roaming\54lq2q8i.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4892
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFF6E.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5836
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3304
- - C:\Users\Admin\AppData\Roaming\54lq2q8i.exe
    "C:\Users\Admin\AppData\Roaming\54lq2q8i.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1832

C:\Users\Admin\AppData\Roaming\54lq2q8i.exe
"C:\Users\Admin\AppData\Roaming\54lq2q8i.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3988

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpFF6E.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpFF6E.tmp.bat
Size 152B
SHA256 8d431b3db3843f51884cc9177e772dc6d36f47bde1977eda758b28d4ec2670ef
MD5 ce9830699c71b3227e109ce0c7d41a80
SHA1 5490bf0133c22e2553dc709982d4220ab9a65fcd
SHA512 57ebac9e995346acd63179c5b4c7e6dbd5148067622119bc1e4235ddadc458d0e197dc115035717506338d52841820f1d7690764ce82e657390f8febbbda946d
TLSH
T10FC08C4252C5AA0E2809642302FAE88EA176682A3E60BB40830448091280448E099289
MD5 SHA1 SHA512 TLSH

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54lq2q8i.exe

Path C:\Users\Admin\AppData\Roaming\54lq2q8i.exe
Size 45KB
SHA256 69a397f866aeed6ca0f6826597e9077062f008958057a349adc2a0feac7ddad7
MD5 05dcc1aeffc79ab6e5155e51f1cfda18
SHA1 d5bca5840114f4a14c1f3861db9d836006b2e578
SHA512 c4ed933f19bf353d6697441408c37b387a337c962e04e6d5467359e43e7fe7f9d65e45f991bcc00cf74ea78f0234251ef9cfe38ddf2272d1e42df7609f29a2de
SSDEEP 768:Yub+dT5UohzWUf8dBmo2qVyqJaxjwHuPIPzjbYg/3iLBXh6In4dknilDBDZrx:Yub+dT5Pk2H3+3P3bP/SL6I4WnCdrx
TLSH
T128232B003BE9812BF2BE5F749DF26105467AF1676603D64E2CC451DB5623FC68A026FD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/412-0-0x0000000000CB0000-0x0000000000CC2000-memory.dmp

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memory/412-1-0x0000000005820000-0x0000000005830000-memory.dmp

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memory/412-2-0x0000000005730000-0x00000000057CC000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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